Yellow railroad crossing mylar (foil) balloon pack. This train balloon has a imprint of the popular "RR" crossing road sign. Excellent room decor item for your little engineer's a train theme birthday party. You can place these balloons at the event/party entrance or use them as a centerpiece on your table with a balloon weight. Each package contains total 3 train balloons, measuring 18 inches in diameter when inflated. Balloons ship flat.